题目内容

Please give the full spelling of these terminology abbreviations in access network: TE, CPN, UNI, SNI.

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In a typical TDM-PON, is the broadcast approach deployed in the downstream or upstream transmission?

In the WDM-PON system, how to identify a signal from a specific ONU?

Does EPON or GPON provide lower latency in general? Why?

What is the typical downstream wavelength in GPON system?

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